Detections
Analytics

Alpine: multiple ngtcp2 packages: security update to 1.5.0-r1

high Tenable Cloud Security Plugin ID 441780

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - ngtcp2 is a C implementation of the IETF QUIC protocol. In versions prior to 1.22.1,
 ngtcp2_qlog_parameters_set_transport_params() serializes peer transport parameters into a fixed 1024-byte
 stack buffer without bounds checking. When qlog is enabled, a remote peer can send sufficiently large
 transport parameters during the QUIC handshake to cause writes beyond the buffer boundary, resulting in a
 stack buffer overflow. This affects deployments that enable the qlog callback and process untrusted peer
 transport parameters. This issue has been fixed in version 1.22.1. If developers are unable to immediately
 upgrade, they can disable the qlog on client. (CVE-2026-40170)

Solution

Update the ngtcp2 library and its related packages to version 1.5.0-r1 or later.

See Also

https://security.alpinelinux.org/vuln/CVE-2026-40170

Plugin Details

Severity: High

ID: 441780

Version: Revision 1.7

Type: Local

Published: 5/13/2026

Updated: 6/1/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-40170

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 4/16/2026

Reference Information

CVE: CVE-2026-40170